- 更多网络例句与二向数组相关的网络例句 [注:此内容来源于网络,仅供参考]
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The intersection problem of simple directed triple systems with λ=2 is completely solved, namely, it is proved that for v ≡0,1 (mod 3), v ≥3,there exist two simple DTS( v ,2)s intersecting in s triple if and only if, s∈{0,1,2,…,2v(v-1)/3},s≠[2v(v-1)/3]-1, while v≥4 s∈{0,2,4},while v
解决了单纯二重有向三元系的相交数问题。即证明了对于任一正整数v≥3,v≡0,1(mod3),存在两个单纯二重有向三元系相交于s个公共区组的充要条件是:当v≥4时,s∈{0,1,2,…,2v(v-1)/3},s≠[2v(v-1)/3]-1;当v=3时,s∈{0,2,4